US5857012A - Radio telephone base station with a monitoring apparatus - Google Patents

Radio telephone base station with a monitoring apparatus Download PDF

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Publication number
US5857012A
US5857012A US08/666,421 US66642196A US5857012A US 5857012 A US5857012 A US 5857012A US 66642196 A US66642196 A US 66642196A US 5857012 A US5857012 A US 5857012A
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US
United States
Prior art keywords
base station
antenna
coupling
monitoring means
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/666,421
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English (en)
Inventor
Clifford Thomas Paul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Solutions and Networks Oy
Original Assignee
Nokia Telecommunications Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Assigned to NOKIA TELECOMMUNICATIONS OY reassignment NOKIA TELECOMMUNICATIONS OY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLIFFORD, PAUL THOMAS
Application granted granted Critical
Publication of US5857012A publication Critical patent/US5857012A/en
Assigned to NOKIA SIEMENS NETWORKS OY reassignment NOKIA SIEMENS NETWORKS OY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NOKIA CORPORATION
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H04B17/18—Monitoring during normal operation

Definitions

  • This invention relates to a radio telephone base station which includes, or is associated with, monitoring means for monitoring test calls.
  • a radio telephone base station for a cellular system communicates by radio with portable handsets carried by subscribers to the system.
  • the base station has a main antenna (providing receive and transmit functions) and a second or so-called diverse antenna providing a receive function only.
  • a monitoring means which is like a dummy portable handset in that the monitoring means has an antenna and test calls can be set up between the base station antennas and the monitoring means antenna, in this case to test the correct functioning of the base station.
  • the need for the monitoring means to have an antenna has disadvantages: apart from the cost of antenna construction and erection there can be difficulties in obtaining planning consent for a further antenna, particularly if it is proposed to add monitoring means to an existing base station.
  • the invention aims to provide a base station with monitoring means which do not require an antenna additional to the antennas of the base station.
  • a base station for a radio telephone system the base station being associated with monitoring means for monitoring the operation of the base station, the base station having two antennas, and the monitoring means being capable of being coupled to a first of the antennas by first coupling means and the monitoring means being capable of being coupled to a second of the antennas by second coupling means, whereby test calls can be made between the base station and the monitoring means without the need for the monitoring means to have an antenna.
  • the monitoring means is preferably connected to the first coupling means through a first switch which is openable to isolate the monitoring means from the first coupling means.
  • the monitoring means is preferably connected to the second coupling means through a second switch which is openable to isolate the monitoring means from the second coupling means.
  • the base station operates in a radio telephone system, eg a cellular system, and communicates with portable handsets carried by subscribers to the system.
  • the base station has a first (main) antenna 1, which both transmits and receives, and a second (diverse) antenna 2 which receives only and provides antenna diversity, in a known manner.
  • the first antenna 1 is connected to a duplexer 3 which separates receive and transmit signals, indicated respectively as Rx1 and Tx1 in the drawing.
  • the second antenna 2 feeds receive signals Rx2 to the diverse channel of the base station.
  • the base station is associated with a radio frequency monitor 4 for monitoring test calls initiated by the base station or by the monitor.
  • the monitor 4 can be viewed as a dummy handset which is permanently positioned at or near the base station to check correct operation.
  • a monitor carries an antenna which communicates through the air with the antennas of the base station when test calls are made.
  • the invention avoids the need for the monitor to be equipped with an antenna.
  • the monitor 4 is coupled to the first antenna 1 by first coupling means 5 and is coupled to the second antenna 2 by second coupling means 6. Both the first and the second coupling means 5, 6 are constituted by high directivity couplers.
  • a first switch S1 is interposed in the electrical connection between the monitor 4 and the first coupling means 5. When the switch S1 is closed, the monitor 4 is connected to the first coupling means 5 and when the switch S1 is open the monitor 4 is disconnected or electrically isolated from the first coupling means 5. Similarly, the monitor 4 is connected to the second coupling means 6 by a second openable switch S2.
  • a parallel circuit around the second switch S2 includes a third switch S3, an amplifier 7 and a circulator 8.
  • the circulator 8 acts to prevent power from the monitor transmitter causing problems.
  • the parallel circuit is for BCCH (Broadcast Control Channel) monitoring.
  • the calls go from the monitor 4, through S1, the first coupling means 5, the first antenna 1, through the air to the second antenna 2 and thence to the diverse receive channel.
  • the call goes from the first antenna 1 to the second antenna 2 and thence to the main receive channel Rx1.
  • the components S1, S2, S3, 5, 6, 7 and 8 are shown enclosed in a broken line box, indicating that these components can be implemented as a single sub-assembly linking the monitor 4 and the antennas 1 and 2.
  • test calls and the operation of the switches S1, S2 and S3 and other components, are set up from a remote control station from which the correct operation of the base station can be monitored or checked with the aid of the monitor 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radio Transmission System (AREA)
  • Alarm Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
US08/666,421 1994-10-15 1995-10-12 Radio telephone base station with a monitoring apparatus Expired - Fee Related US5857012A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9420827 1994-10-15
GB9420827A GB2294378A (en) 1994-10-15 1994-10-15 Radio telephone base station
PCT/GB1995/002408 WO1996012379A1 (en) 1994-10-15 1995-10-12 Radio telephone base station with a monitoring apparatus

Publications (1)

Publication Number Publication Date
US5857012A true US5857012A (en) 1999-01-05

Family

ID=10762910

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/666,421 Expired - Fee Related US5857012A (en) 1994-10-15 1995-10-12 Radio telephone base station with a monitoring apparatus

Country Status (11)

Country Link
US (1) US5857012A (de)
EP (1) EP0734637B1 (de)
JP (1) JPH09507367A (de)
CN (1) CN1077391C (de)
AT (1) ATE277482T1 (de)
AU (1) AU686889B2 (de)
DE (1) DE69533542T2 (de)
FI (1) FI962437A (de)
GB (1) GB2294378A (de)
NO (1) NO962541D0 (de)
WO (1) WO1996012379A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128474A (en) * 1996-12-30 2000-10-03 Lg Information & Communications, Ltd. Test circuit of base station for mobile radio communication system
US6308046B1 (en) * 1997-12-31 2001-10-23 Lg Information And Communications, Ltd. Video/audio alarm processing method and apparatus for base station manager in mobile radio communication system
US6317591B1 (en) * 1997-04-30 2001-11-13 U.S. Philips Corporation Telephony device comprising a base station and at least a subscriber unit, subscriber unit for such a telephony device and method used in such a telephony device
GB2379833A (en) * 2001-09-18 2003-03-19 Lucent Technologies Inc Method of testing antennas of a wireless telecommunications base station
US20030218538A1 (en) * 2002-05-24 2003-11-27 Cingular Wireless, L.L.C. System and method for alarm monitoring
KR100407935B1 (ko) * 1999-07-02 2003-12-01 엘지전자 주식회사 기지국 시스템의 불량 검출 장치 및 불량 검출 방법
US20060246923A1 (en) * 1998-02-13 2006-11-02 Rajeev Krishnamurthi System and method for base station initiated call setup
GR20050100322A (el) * 2005-06-28 2007-01-19 Νικολαος Ιωαννη Κεραμιδας Συσκευη κοινης συνδεσης των κεραιων λειτουργιας των σταθμων βασεως κινητης τηλεφωνιας, με τηλεπικοινωνιακες συσκευες ληψεως ραδιοσυχνοτητων, για χρηση ανιχνευσης ραδιοπαρεμβολων

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09135199A (ja) * 1995-11-10 1997-05-20 Nec Corp アンテナアラーム検出方式
US5835850A (en) * 1996-08-12 1998-11-10 At&T Corp Self-testing transceiver
US6633743B1 (en) 1996-12-24 2003-10-14 Lucent Technologies Inc. Remote wireless communication device
GB2410397B (en) * 2004-01-21 2007-11-14 Airspan Networks Inc A subscriber terminal for a telecommunications system
CN101102137B (zh) * 2007-07-16 2010-12-01 中兴通讯股份有限公司 一种实现扩展数据卡的天线分集方法
CN101127549B (zh) * 2007-09-19 2011-08-10 中兴通讯股份有限公司 一种pcmcia数据卡和实现其分集接收的天线的方法
JP2011109708A (ja) * 2011-01-31 2011-06-02 Panasonic Electric Works Co Ltd 無線送信機
CN107294557B (zh) * 2016-03-30 2020-10-23 华为技术有限公司 移动终端的射频前端电路和整机耦合测试方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015904A1 (en) * 1990-03-31 1991-10-17 Motorola Limited Base station transceiver diagnostics equipment
US5448766A (en) * 1993-05-10 1995-09-05 Motorola, Inc. Method and apparatus for automatically replacing a non-functioning transmitter in a radio communication system
US5557603A (en) * 1991-12-23 1996-09-17 Motorola, Inc. Radio communications apparatus with diversity
US5574981A (en) * 1992-12-30 1996-11-12 Nokia Telecommunications Oy Method and arrangement for measuring the condition of a receiver antenna
US5754560A (en) * 1995-06-16 1998-05-19 Nokia Telecommunications Oy Method and apparatus for establishing a test loop for monitoring the operation of a radio station

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272604B (en) * 1992-11-10 1996-09-25 Motorola Ltd Radio base station with receiver diversity testing
DE9318632U1 (de) * 1993-12-06 1995-04-06 Wulf & Co Emsa Werk Vorrichtung zum Aufnehmen von Folienrollen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015904A1 (en) * 1990-03-31 1991-10-17 Motorola Limited Base station transceiver diagnostics equipment
US5557603A (en) * 1991-12-23 1996-09-17 Motorola, Inc. Radio communications apparatus with diversity
US5574981A (en) * 1992-12-30 1996-11-12 Nokia Telecommunications Oy Method and arrangement for measuring the condition of a receiver antenna
US5448766A (en) * 1993-05-10 1995-09-05 Motorola, Inc. Method and apparatus for automatically replacing a non-functioning transmitter in a radio communication system
US5754560A (en) * 1995-06-16 1998-05-19 Nokia Telecommunications Oy Method and apparatus for establishing a test loop for monitoring the operation of a radio station

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128474A (en) * 1996-12-30 2000-10-03 Lg Information & Communications, Ltd. Test circuit of base station for mobile radio communication system
US6317591B1 (en) * 1997-04-30 2001-11-13 U.S. Philips Corporation Telephony device comprising a base station and at least a subscriber unit, subscriber unit for such a telephony device and method used in such a telephony device
US6308046B1 (en) * 1997-12-31 2001-10-23 Lg Information And Communications, Ltd. Video/audio alarm processing method and apparatus for base station manager in mobile radio communication system
US6704548B2 (en) * 1997-12-31 2004-03-09 Lg Information And Communications, Ltd. Video/audio alarm processing apparatus for base station manager in mobile radio communication system
US20060246923A1 (en) * 1998-02-13 2006-11-02 Rajeev Krishnamurthi System and method for base station initiated call setup
US8285331B2 (en) * 1998-02-13 2012-10-09 Qualcomm Incorporated System and method for base station initiated call setup
KR100407935B1 (ko) * 1999-07-02 2003-12-01 엘지전자 주식회사 기지국 시스템의 불량 검출 장치 및 불량 검출 방법
GB2379833A (en) * 2001-09-18 2003-03-19 Lucent Technologies Inc Method of testing antennas of a wireless telecommunications base station
US20030218538A1 (en) * 2002-05-24 2003-11-27 Cingular Wireless, L.L.C. System and method for alarm monitoring
US7053763B2 (en) 2002-05-24 2006-05-30 Cingular Wireless Ii, Llc System and method for alarm monitoring
GR20050100322A (el) * 2005-06-28 2007-01-19 Νικολαος Ιωαννη Κεραμιδας Συσκευη κοινης συνδεσης των κεραιων λειτουργιας των σταθμων βασεως κινητης τηλεφωνιας, με τηλεπικοινωνιακες συσκευες ληψεως ραδιοσυχνοτητων, για χρηση ανιχνευσης ραδιοπαρεμβολων

Also Published As

Publication number Publication date
JPH09507367A (ja) 1997-07-22
EP0734637B1 (de) 2004-09-22
FI962437A0 (fi) 1996-06-12
ATE277482T1 (de) 2004-10-15
DE69533542D1 (de) 2004-10-28
GB9420827D0 (en) 1994-11-30
NO962541L (no) 1996-06-14
GB2294378A (en) 1996-04-24
AU686889B2 (en) 1998-02-12
FI962437A (fi) 1996-08-12
WO1996012379A1 (en) 1996-04-25
CN1139509A (zh) 1997-01-01
CN1077391C (zh) 2002-01-02
DE69533542T2 (de) 2005-02-03
EP0734637A1 (de) 1996-10-02
AU3615595A (en) 1996-05-06
NO962541D0 (no) 1996-06-14

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AS Assignment

Owner name: NOKIA TELECOMMUNICATIONS OY, FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CLIFFORD, PAUL THOMAS;REEL/FRAME:008323/0809

Effective date: 19960812

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Owner name: NOKIA SIEMENS NETWORKS OY, FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA CORPORATION;REEL/FRAME:020837/0726

Effective date: 20070913

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STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

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Effective date: 20110105